"I would be changing his diaper and he would poop all over my hands," Rivera said.

Poopy performs with grown-up rap stars -- last year, at just 9 years old, Poopy flew to Miami to do a video with Diddy -- and sings along to lyrics with adult themes.

But Poopy is also scooping up controversy with lyrics he says he writes himself, including one song that uses the words, "I do it hard, I do it big, I do it times three. You might catch me with two or three mommies, bad hotties, super bad body."

It was only last February when the Poop hit the fans with a sexually suggestive video on YouTube. The local Brockton paper, The Brockton Enterprise, called the fourth grader's extracurricular activities shown in the video -- which included riding in a red Ferrari, swinging blinged-out chains around his neck and wooing adult women in tight clothing -- "an orgy of outrageous behavior" and demanded to know, "who is looking out for this boy?"

But one of the behaviors, in particular, that the paper took exception to? "Me smacking a girl's behind," Poopy said.

But his father defended his son's antics in the video, saying it was just "entertainment."

"He was just acting," Rivera said. "Just like any other Hollywood kid would do. They entertain people."

But the video didn't just set off The Brockton Enterprise. The clip, which was pulled from YouTube, led the Brockton police to take action.

"Our officers felt it appropriate to refer this matter to the Department of Children and Families," Brockton Lt. Paul Bonanca told ABC News.

The police's complaint, known as a 51-A, kickstarted and a state Department of Children and Families investigation into the Riveras, which infuriated the family's lawyer, Joseph Krowski.

"The standard for a 51-A investigation is there has to be an imminent risk of significant and substantial physical or emotional injury to the child -- an absolutely outrageous claim under these circumstances," Krowski said. "This is a good kid. This is almost a spoof on adult rap videos."

Nevertheless, if he had to do it all over again, Rivera said he would still let his son do the provocative video.

"I wouldn't change anything," he said.

Yet, Lil' Poopy's mother Jatoy Rivera, who no longer lives with Poopy's father, admitted that her son had gone too far with this latest video.

"I would have told him not to do it," Jatoy Rivera said.

Poopy and his peeps insist the video was just acting, all pretend, boasting for effect in the hip-hop tradition, and that in real-life Poopy is just a normal kid, who plays sports with his friends and rides ATVs with his father. His family said he is looked after with parental love and care and is doing well in school.

"If I didn't go to school, there wouldn't be no rapping because school comes before rapping," Poopy said.